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VIDEO:Knowledge

Study Tests How Dinosaurs Went Extinct

Description:The most common explanation for the mass extinction of dinosaurs as a species is that an asteroid hit the Earth in Central America, which sent dust and ash up into the atmosphere, blocking the sun and killing off many forms of life. (1:13)

Source: GeoBeats

Tags: dinosaur extinction explained , GeoBeats , how were dinosaurs extinct , dinosaurs extinct

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